A manuscript addition to the map's verso reads "Cape Breton from Mr Dixon".
Compare "A plan and section of the old wharf, with ye design of a new dock for the navy at Annapolis Royal in Nova Scotia 1756. Mattw: Dixon, engineer" listed in The Library of Congress Online Catalog (CALL NUMBER: G3424.A45P55 1756 .D5 Vault) within the Peter Force map collection, which is also referenced in 'Tooley's Dictionary of Mapmakers A-D'.
Estimated date from previous cataloguing.
Includes the eastern part of Nova Scotia, naming Cape Canso.
Degrees of latitude are given outside the neatline in the right margin.
The scale is given at lower right where the "SCALE of SIX LEAGUES" is equal to 3 1/2 inches.
A large and decorative compass rose is shown in the Atlantic orienting north to the top of the page.
Titled 'Carte dessinée de l'Isle Royalle' in the Catalogue of Maps, Prints, Drawings, etc., forming the geographical and topographical collection attached to the Library of his late Majesty King George the third, etc., London, 1829.
Titled 'A colored map of the "Isle Royale," or Cape Breton; drawn on a scale of 1 2/3 league to an inch : 1 f. 8 in. x 1 f. 6 in." in the Catalogue of the manuscript maps, charts, and plans, and of the topographical drawings in the British Museum.